Pavement sealer spreader apparatus



1965 e. R. DABELLE 3,199,875

PAVEMENT SEALER SPREADER APPARATUS Original Filed Nov. 16, 1959 INVENTOR. GOD/ R5 Y R. 0/156 ME 147' 7 GENE Y5.

United States Patent PAVEMENT dEALEB SPREADER AE PAPAEUS Godfrey l2. Dabelle, Eden, NJEL, assignor, by mesne assignments, to E. i). Etnyre E; 80., Gregon, Ell.

Original application Nov. 16, 1959, Ser. No. 853,391, new

Patent No. 3,153,992, dated Get. 27, 1964. Divided and this application Sept. 39, 1953, Ser. No. 319,626

2 Claims. (Cl. 275-14) This application is a division or" my copending application, Serial No. 853,391, filed Novemeber 16, 1959, now Patent No. 3,153,992.

This invention relates to apparatus for depositing and spreading liquid or semi-liqui material or slurry on pavement, and more particularly to mobile apparatus adapted to deposit and spread such material continuously as the apparatus passes along a road or street.

Certain types of road pavements and similar paved surfaces such as blacktop and maeadam are improved and rendered more durable and water-resistant by the application of liquid or semi-liquid sealing compounds or mixtures of various kinds. Such application involves depositing the materal on the paved surface and spreading the same uniformly thereover as by means of squeegees or the like, The provision of suitable apparatus for this purpose presents the problem of securing a generally uniform deposit of material across the pavement as the apparatus moves therealon g.

This problem is complicated by the sticky, somewhat viscous and adherent nature of the sealing or surface treating material and the tendency of the same to build up in the depositing apparatus and thus alter the depositing properties thereof. ther problems arise in the depositing of the material owing to the inclined su faces of pavements, as when sealing material is being applied to one side of a crowned roadway of street, and also, when the apparatus is mounted at the rear of a truck or is towed thereby, due to inability of the truck driver to maintain a suficiently straight or pro erly aligned course.

The present invention provides apparatus which receives liquid or semi-liquid material as the same flows from a tank and diverges the ilow by means of a novel arrangement of open channels which are inherently nonclogging, easy to clean when necessary or desirable, and adapted to maintain uniform depositing properties during long periods of continuous or intermittent use. The spreading and depositing apparatus of the present invention is further arranged so that the zone in which the material is deposited may readily be shifted laterally in either direction to compensate when depositing on an inclined surface and to offset or laterally adjust the deposit for any other operational reason.

According to the arrangement of the apparatus or" the present invention set forth herein by way of example, the depositing mechanism is attached to the rear of an auto motive tank truck which carries a supply of the liquid or semi-liquid sealing or coating material. An operator has within easy reach control means for regulating the discharge valve from the tank truck to control the quantity of material passing to the depositing means and a control lever for adjusting the lateral range of deposit of the material.

While a single complete embodiment of the principles of the present invention is set forth herein and illustrated in the drawings by way of example, it is to be understood that numerous mechanical modifications and variations may be effected or introduced without departing from the spirit of the invention, the scope of which is limited only as defined in the appended claims.

In the drawings:

FIG. 1 is a side elevational view of one form of the M l Ce Patented Aug. it), 12955 apparatus of the present invention shown in association with the rear portion of a tank truck; and

FIG. 2 is an oblique plan view of the structure of PEG. I viewed approximately from the upper right of FIG. 1.

Speaking gcnerally, the material depositing apparatus of the present invention is mounted at the rear of a ta truck and the material which is deposited issues to the depositing apparatus from the tank of the carrying truck. The material is a liquid or slurry which may comprise a bituminous or other sealing material or any roadway or pavement treating material in liquid or semiliquid torn.

Like characters of reference denote like parts in the drawin s and the numeral id designates the usual parallel longitudinal channels of the frame portion of a truck chassis and the numeral ll designates a pair of tank base members mounted thereon. A tank 12 is mounted on the base members 11 and feeds sealing liquid or slurry to the apparatus of the present invention by way of an outlet conduit 14. A valve (not shown) is provided in the conduit 14 so that the operator of the apparatus may regulate the rate of fiow of material to the depositing means.

For uniform and efiicient spreading it is required that the material be deposited on the roadway or pavement somewhat uniformly thereacross and this result is not readily achieved owing to the viscous, sticky and adherent nature of the sealing material.

Conventional liquid distributing manifolds which involve moderately restricted orifices result in clogging and stoppage and resultant uneven and inadequate deposit of material and clearing such internal stoppage is virtually impossible in the field. The present invention provides a distributing arrangement whereby the liquid or semi-liquid slurry is distributed fanwise by means of open chutes or passages of substantial width which do not impose narrow or constricted flow paths and which, due to their open nature, are inherently non-clogging and readily accessible for cleaning when necessary or desired.

Speaking generally, the liquid material or slurry distributing and depositing arrangement shown herein comprises a panof successively arranged generally fan shaped inclined chute devices designated generally by the reference numerals and 96. The chute device 95, in the structure set forth herein by way of example, is provided with an entry conduit portion 97 connected with the outlet eonduit 14 of tank 12 and an inclined fan-shaped bottom wall 98. Bottom wall 98 is divided into four channels which increase in width in the direction of flow, as clearly shown in FIG. 2, by virtue of five generally upright diverg ng wall members which are fixed to bottom wall At their discharge ends the wall members 1% have hinged thereto wall member extensions ltll which are each 'voted to a common transverse bar 162 having a handle .33 fixed thereto. Movement of handle 1% to the right or left swings the wall member extensions 101 jointly as indicated by the dot and dash arcs in FIG. 2 to vary the lateral points of discharge from the chute device 95 to the chute device 96.

The entry end of chute device 96 underlies chute device 95 as clearly shown in HG. l and chute device 96 comprises a fan shaped bottom wall extending at an incline generally parallel to the bottom wall 93 of chute device 95'. An upward extension 1&6 of bottom Wall 1435 is fixed between the truck frame members 1% and tank base members 11. A downward continuation of bottom wall 1% designated lld7 is hinged to bottom wall ill? as at 1 3?; so that such downward continuation may be swung upwardly (in a counterclockwise direction as viewed in FIG. 1) to be entirely clear of the road or pavement and thus aflord ample road clearance when the depositing means is not in operation.

As shown in FIG. 2, the hinged bottom wall continuation 187 of chute device 96 has lateral extensions flit hin ed thereto as at 111, whereby such lateral extensions may be hinged upwardly when not in use to narrow the overall width of the apparatus.

The upper surfaces of the bottom wall portions 165 and 107 are provided with generally upright diverging ribs or wall members 112 and 113, respectively, which form a plurality of channels, in the present instance ten in number, which increase in width in the direction of flow.

By reason of the greater number of channels in the relatively wider chute 96 as compared with the upper narrower chute 95, the channels in the two chutes are of generally the same order of Width so that they distribute the material laterally without undue constriction in the How and still with sufiicient equality of distribution.

It will be noted that the lateral swinging of the wall member extensions 191 of chute 95 may be employed to direct the material somewhat more to one side or the other of the chute 96 and this control of the distribution pattern is particularly advantageous when one side of a crowned road or pavement is being treated so that the apparatus is laterally inclined and the normal tendency would be for the material to be deposited too much toward the low side of the road or pavement.

I claim:

1. Apparatus for dispensing liquid or semi-liquid material from a tank truck to pavement while the truck is passing along the same, said apparatus comprising inclined plate means having a relatively narrow upper entry end for receiving a flow of such material from the tank of said truck and a lower discharge end of substantially the width of the band of material to be deposited, a first set of diverging partition members on said plate means extending from the entry end to a point partway down said plate means to form a plurality of open channels, and a second set of diverging partition members on said plate means beginning generally at the lower ends or the first set of partition members and extending down- 4 wardly substantially to the discharge end of said plate means to divide the lower portion of the plate means into a plurality of open channels, said second set of partitions being greater in number than the first set whereby the channels of the two sets are of the same general order of width, the lower ends of the partitions of one set being movable laterally in unison to deflect the discharge of material in either direction transversely relative to the direction of movement of the tank truck.

2. Apparatus for dispensing liquid or semi-liquid material from a tank truck to pavement while the truck is passing along the same, said apparatus comprising inclined plate means having a relatively narrow upper entry end for receiving a flow of such material from the tank of said truck and a lower discharge end of substantially the width of the band of material to be deposited, a first set of diverging partition members on said plate means extending from the entry end to a point partway down said plate means to form a plurality of open channels, and a second set of diverging partition members on said plate means beginning generally at the lower ends of the first set of partition members and extending downwardly substantially to the discharge end of said plate means to divide the lower portion of the plate means into a plurality of open channels, said second set of partitions being greater in number than the first set whereby the channels of the two sets are of the same general order of width, the lower ends of the partitions of said first set being movable laterally to divert the material flowing to the second set of partitions and thus adjust the discharge pattern to one side or the other with respect to the direction of movement of the tank truck.

References Cited by the Examiner UNITED STATES PATENTS 1,833,989 12/31 Debnam et 211. 2,717,783 9/55 Flink 274-l4 3,077,351 2/63 Van Der Lely et a1 a- 2757 SAMUEL F. COLEMAN, Primary Examiner. 

1. APPARATUS FOR DISPENSING LIQUID OR SEMI-LIQUID MATERIAL FROM A TANK TRUCK TO PAVEMENT WHILE THE TRUCK IS PASSING ALONG THE SAME, SAID APPARATUS COMPRISING INCLINED PLATE MEANS HAVING A RELATIVELY NARROW UPPER ENTRY END FOR RECEIVING A FLOW OF SUCH MATERIAL FROM THE TANK OF SAID TRUCK AND A LOWER DISCHARGE END OF SUBSTANTIALLY THE WIDTH OF THE BAND OF MATERIAL TO BE DEPOSITED, A FIRST SET OF DIVERGING PARTITION MEMBERS ON SAID PLATE MEANS EXTENDING FROM THE ENTRY END TO A POINT PARTWAY DOWN SAID PLATE MEANS TO FORM A PLURALITY OF OPEN CHANNELS, AND A SECOND SET OF DIVERGING PARTITION MEMBERS ON SAID PLATE MEANS BEGINING GENERALLY AT THE LOWER ENDS OF THE FIRST SET OF PARTITION MEMBERS AND EXTENDING DOWNWARDLY SUBSTANTIALLY TO THE DISCHARGE END OF SAID PLATE MEANS TO DIVIDE THE LOWER PORTION OF THE PLATE MEANS INTO A PLURALITY OF OPEN CHANNELS, SAID SECOND SET OF PARTITIONS BEING GREATER IN NUMBER THAN THE FIRST SET WHEREBY THE CHANNELS OF THE TWO SETS ARE OF THE SAME GENERAL ORDER OF WIDTH, THE LOWER ENDS OF THE PARTITIONS OF ONE SET BEING MOVABLE LATERALLY IN UNISON TO DEFLECT THE DISCHARGE OF MATERIAL IN EITHER DIRECTION TRANSVERSELY RELATIVE TO THE DIRECTION OF MOVEMENT OF THE TANK TRUCK. 